| Radicchio | |
|---|---|
| 
 Radicchio 
 | 
|
| Species | Cichorium intybus | 
| Cultivar group | Radicchio Group | 
| Nutritional value per 100 g (3.5 oz) | |
|---|---|
| Energy | 96 kJ (23 kcal) | 
| 
 4.48 g 
 | 
|
| Sugars | 0.6 g | 
| Dietary fiber | 0.9 g | 
| 
 0.25 g 
 | 
|
| 
 1.43 g 
 | 
|
| Vitamins | |
| Vitamin A equiv. | 
 8832 μg 
 | 
| Thiamine (B1) | 
 (1%) 
0.016 mg | 
| Riboflavin (B2) | 
 (2%) 
0.028 mg | 
| Niacin (B3) | 
 (2%) 
0.255 mg | 
| Pantothenic acid (B5) | 
 (5%) 
0.269 mg | 
| Vitamin B6 | 
 (4%) 
0.057 mg | 
| Folate (B9) | 
 (15%) 
60 μg | 
| Vitamin C | 
 (10%) 
8 mg | 
| Vitamin E | 
 (15%) 
2.26 mg | 
| Vitamin K | 
 (243%) 
255.2 μg | 
| Minerals | |
| Calcium | 
 (2%) 
19 mg | 
| Iron | 
 (4%) 
0.57 mg | 
| Magnesium | 
 (4%) 
13 mg | 
| Manganese | 
 (7%) 
0.138 mg | 
| Phosphorus | 
 (6%) 
40 mg | 
| Potassium | 
 (6%) 
302 mg | 
| Sodium | 
 (1%) 
22 mg | 
| Zinc | 
 (7%) 
0.62 mg | 
| 
 | 
|
  | 
|
| Percentages are roughly approximated using US recommendations for adults. Source: USDA Nutrient Database  | 
|
Radicchio (/rəˈdɪkioʊ/ or /rəˈdiːkioʊ/; Italian pronunciation: [raˈdikkjo]) is a cultivated form of leaf chicory (Cichorium intybus, Asteraceae), sometimes known as Italian chicory, and is a perennial. It is grown as a leaf vegetable which usually has white-veined red leaves. It has a bitter and spicy taste, which mellows when it is grilled or roasted.
Pliny the Elder claimed 'radicchio' was useful as a blood purifier and an aid for insomniacs in Naturalis Historia. In fact, 'radicchio' contains intybin, a sedative/analgesic, as well as a type of flavonoid called anthocyanin which is used for making dye-sensitized solar cells.